mirror of
https://github.com/TracksApp/tracks.git
synced 2025-12-20 01:00:13 +01:00
38 lines
1.3 KiB
Ruby
38 lines
1.3 KiB
Ruby
|
module Stats
|
||
|
|
class PieChartData
|
||
|
|
|
||
|
|
attr_reader :all_actions_per_context, :values, :labels, :ids, :alpha, :title
|
||
|
|
def initialize(all_actions_per_context, title, alpha)
|
||
|
|
@all_actions_per_context = all_actions_per_context
|
||
|
|
@title = title
|
||
|
|
@alpha = alpha
|
||
|
|
end
|
||
|
|
|
||
|
|
def calculate
|
||
|
|
sum = all_actions_per_context.inject(0){|sum, apc| sum + apc['total']}
|
||
|
|
|
||
|
|
pie_cutoff=10
|
||
|
|
size = [all_actions_per_context.size, pie_cutoff].min
|
||
|
|
|
||
|
|
# explicitly copy contents of hash to avoid ending up with two arrays pointing to same hashes
|
||
|
|
actions_per_context = Array.new(size){|i| {
|
||
|
|
'name' => all_actions_per_context[i]['name'],
|
||
|
|
'total' => all_actions_per_context[i]['total'],
|
||
|
|
'id' => all_actions_per_context[i]['id']
|
||
|
|
} }
|
||
|
|
|
||
|
|
if all_actions_per_context.size > pie_cutoff
|
||
|
|
actions_per_context[-1]['name']=I18n.t('stats.other_actions_label')
|
||
|
|
actions_per_context[-1]['id']=-1
|
||
|
|
size.upto(all_actions_per_context.size-1){ |i| actions_per_context[-1]['total']+=(all_actions_per_context[i]['total']) }
|
||
|
|
end
|
||
|
|
|
||
|
|
@values = Array.new(size){|i| actions_per_context[i]['total']*100/sum }
|
||
|
|
@labels = Array.new(size){|i| actions_per_context[i]['name'].truncate(15, :omission => '...') }
|
||
|
|
@ids = Array.new(size){|i| actions_per_context[i]['id']}
|
||
|
|
end
|
||
|
|
|
||
|
|
|
||
|
|
end
|
||
|
|
end
|